Structure 26089 · Mercer County, PA

Sunol Road over Black Run

Carries Sunol Road over Black Run, 1500ft SW Of Cranberry RD.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
22 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 22 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built198244 years old
Length22.0 ft6.7 m
Daily traffic24counted 2024
Last inspectedMay 2024every 24 months

Location

StatePennsylvania
CountyMercer
Location1500ft SW Of Cranberry RD
CarriesSunol Road
CrossesBlack Run
Coordinates41.47212, -80.14931

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length22.0 ft (6.7 m)
Max Span20.0 ft (6.1 m)
Deck Width35.8 ft (10.9 m)
Deck Area73.0 sq m
Main Spans1
Year Built1982

Traffic

Avg Daily Traffic24 (2024)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000026089

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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